Manufacture of round leather belting



(No Medel.)

I. E. DRUSGHKY & L. A. SCHJBRLING. MANUPAGTURB 0F ROUND LEATHER BELTING.

No. 526,617. Patented Sept; 25, 1894 seuuuuuzefmmlf UNITED STATES PATENTOEEICE.

FRANK E. DRUSCHKY AND LUDVIG ADOLPH SCHJERLING, OF CHICAGO,` ILLINOIS.

`MANUFACTURE OF ROUND LEATHER BELTING.

SPECIFICATION forming part of Letters Patent No. 526,617, datedSeptember 25,1894. Application filed April 2, 1894. Serial No. 506,093.(No model.)

To all whom it may concern:

Be it known that we,FEANK E. DEUSOHKY and LUDvIG ADOLPH SOHJEELI'NG,citizens of the United States, residing at Chicago, in the county ofCook and State of Illinois, have invented an Improvement in theManufacture of Round Leather Belting, of which the following is aspecification.

The object of our invention is to provide an improved machine thatshall, with a single operation, cut up an entire hide, with the leastpossible waste, into a continuous strip adapted for use asmachinery-belting; and our further obj ect is to provide, as an adjunctof the hide cutting machine, a trimming attachm-ent for reducing thestrip, fed to it as it is cut from the hide, to a rounded shape incross-section, thereby the better to adapt it for use as belting insewing and type-writing machines and similar machinery of the lighterclass.

Referring to the accompanying drawings- Figure l is a plan view of ourimproved machine, illustrating it as in operation upon a hide. Figs. 2and 3 are enlarged sections taken, respectively, at the lines 2 and 3 onFig. l and viewed as indicated by arrows. Figs. 4 and 5 are sectionstaken, respectively, at the lines 4 and 5 on Fig. 3 and viewed asindicated by arrows. at the line 6 on Fig. 1,vieWed in the direction ofthe arrow, and enlarged.

The general construction and operation of our improved machine may bedescribed as.

follows:

On a rotary horizontal table, having a central upward-extending postcarrying a lateral guide stop, is loosely imposed a hide having anopening cut near its center through which to permit the stud to pass.Adjacent to the guide-stop, a cutting-tool is stationarily adusted toextend at its cutting edge, to asuitable angle with relation to theguide-stop, the latter and the cutting-tool or knife being locatedwithin the plane of the opening in the hide. By then rotating the hide,the knife penetrates the edge of the material surrounding the openingand cuts it; and as the rotation proceeds, the severed length is crowdedagainst the stationary guide-stop and 1s con- Fig. 6 is a section takentinuously fed between the latter and the knife, whereby the width of thestrip being cut remains uniform, and by the operation of the knifeagainst the guide-stop, the hide itself is shifted automatically tocause it to present a continuous spiral line to the knife along whichits severing function is exerted. When the strip thus cutis sufficientlylong to reach to a winding drum, its end is attached to the latter; andthereafter the rotation of the hide (and incidental rotation of thetable by the frictional contact with it of the hide) is produced byturning the reeling device to wind upon it the strip as it is formed bythe action of the cutter.

A trimming-die is interposed between the cutting and winding apparatus,and the strip, on its way to the drum,is passed through the die andshaved by it into the desired round shape.

In detail, our improvment involves the following-described construction.

A is a dat circular table mounted on astationary annular bed B having acentral post r terminating in a stud q having a rigid guidestop pprojecting laterally from it. The post r and base B are groovedcircumferentially in their top portions, as shown, to receiveanti-friction balls o on which the table A rests, and which causo it topresent the minimum of resistance against rotation.

C is an arm removably fastened rigidly upon the stud q to extendhorizontally therefrom in the direction of the guide-stop p,- and on thearm, between guides n3 thereon, is adjustably fastened a knife-holder n,by a set-screwn passed into the arm through an elongated slot n2 in theholder. In the holder is rigidly, but adjustably supported inperpendicular position, to extend through an elongated slot i', theknife D, comprising a blade preferably of the form in cross-sectionrepresented in Fig. 5, and occupying the position relative to theguide-stop p as shown in that figure.

E is the drum or spool, of any suitable form, located in convenientposition with relation to the table; and between the latter and thespool we provide a trimming-die device F, comprising a bed m having aplate Ioo v provided with lateral guides, hinged to 'one sideof the basetoertend over'its top, and adjustable on its hinge by a set-screw 'm2(Fig 2), and the cone-frustum shaped hollow cutting-die Z on a base Zfitting between the guides m and having Ian elongated slotl2 throughwhich to fasten it in place by means of a set-screw Z8 and permit it tobe adjusted lengthwise of the die. We also show, in Fig.

2, a guide la on the'side of the base` lml adjacent to the table A, bywhich to direct the strip to the trimming die.

To prepare Va hide H to be operated upon" by our improved machine, acircular section is cut out of its center,`and it is then spread uponthe table A with the stud r and guidejstop protruding through itscent-ral opening.r The'arin C is then adjusted and the knife D is set topresent its cutting edge tothe cir-v cumferential edge of the'hide-opening. By

then turning the hide against the cutter astri p G is cut therefrom, andpassed, between the` 'knife and guide-stop, through thedie Zjto thespool E, to which the'leading end is fastened.

Thercafterthe strip is cut by turning the spool to wind itthereon,`whe`reby the Vstrain on the hide'and `its vtrictional contactwithl'I the easily rotatable. table turn 'the latter andf present thematerial of the lhide properly to. the cutter, the strip G, by` beingpulled be-4 tween the knife "and vthe guide-Stopp, prel any desiredwidth, andwitht'heleast possible wastepof leather, which consists merelyof the fag-ends of thehide; thereby aording great advantage over themethod hitherto practiced of forming thebelting by hand, in'severaloperations.

The spool E may be turned by machinery, Y

if desired, instead of by hand; and the details of our machine as shownand describedmay, in Various'particulars, be departed from with- :outthereby departing from our invention.

Hence we do not limit our invention to such particular details.

What we claim as new, and desire to secure by Letters Patent, is-

1. In a machine for cutting hides into "strips,the combination of arotatable hidesupport, and a guide-stop and a cutter near the centerabout which the hide is rotated and relatively supported to form apassage between them for the stripl as it is cutfrorn the-hide,substantially as described.

2. In a machine for cutting hides into strips, the combination of'a bedlhaving a central post fr formed with a stud q, a rotatable tablehaving'a ball-bearing support on vsaid bed, a guide-'stop pon thestudland an arm C thereon carrying a knifeD presenting vits cut- "tingedge at an angle to the guide-stop and forming therewith a passage forthe strip as it liscut from the hide,'subst'antially as described.

3. In a machine for cutting hides into strips, the combination of anannular bed B having acentral post r formed with a stud q provided withvguide-bearing p, a table A having a ball-bearing support on said bed,an, arm C supported on the stud and having a slot i, a knifebearingn'adju'stably supported bearing to extend perpendicularly through saidslot and form with the guide-stop a passage for the strip as itis cutfrom-a hide on the table,'substantially as described.

FRANK E. DRUSCHKY. LUDVIG ADOLIH SCHJ'ERLING. In presence of- SEYMOURSTEDMAN, WILLIS MELVILLE.

on the arm, anda knife D supported on the

